Columbia, South Carolina – A shift toward colder-than-normal weather during the Jan 20–24 period is increasing concern for winter weather across parts of South Carolina, particularly away from the coast. While snow is not a certainty, the developing cold pattern raises the risk for snow or ice if precipitation moves through while colder air is in place.
According to the National Weather Service Climate Prediction Center, South Carolina carries a 50–60% probability of below-normal temperatures during the January 20–24 window. Precipitation probabilities remain above normal at 40–50%, a combination that supports the potential for wintry precipitation, especially during overnight and early morning hours when temperatures are coldest.
In Columbia and much of the Midlands, daytime temperatures may remain near seasonal averages but are expected to drop toward freezing at night. That setup could allow rain to briefly mix with or change to snow if precipitation overlaps with colder air. The Upstate, including Greenville, Spartanburg, and areas along the I-85 corridor, faces a higher chance of seeing snow or a light accumulation, particularly if colder air deepens. Parts of the western Piedmont and foothills have the greatest potential for a more impactful winter weather outcome.
Major travel routes such as I-26, I-20, I-85, and U.S. 501 could become slick during wintry precipitation, especially on bridges and overpasses where cold surfaces develop quickly. Even light snow or ice can cause significant travel issues in the region due to limited winter treatment.
Residents are encouraged to prepare ahead of the Jan 20–24 window by monitoring updated weather information, checking heating systems, and planning for possible travel disruptions. While significant snow is not guaranteed, the evolving pattern supports the possibility of a rare but impactful winter weather event for parts of South Carolina.
This cooler pattern is expected to persist through late week, and additional advisories or alerts may be issued as confidence in timing and impacts increases.
